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Finding the Fourth Proportional to 165,679.80, 248,325.30 and 70,909.80

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Solution

The fourth proportional to 165,679.80, 248,325.30 and 70,909.80 is: 106,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,679.80 : 248,325.30 = 70,909.80 : x
  2. Step 2: Convert to fraction form
    165,679.80/248,325.30 = 70,909.80/x
  3. Step 3: Cross multiply
    165,679.80x = 248,325.30 × 70,909.80
  4. Step 4: Simplify right side
    165,679.80x = 17,608,697,357.94
  5. Step 5: Solve for x
    x = 17,608,697,357.94/165,679.80
  6. Step 6: Final answer
    x = 106,281.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.